DJ

Dennis C. Jeffreys

NS New England Power Service: 2 patents #2 of 8Top 25%
📍 Bedford, MA: #402 of 774 inventorsTop 55%
🗺 Massachusetts: #42,150 of 88,656 inventorsTop 50%
Overall (All Time): #2,363,477 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4400688 Method and apparatus for communication over electric power lines Reed H. Johnston, Lawrence J. Stratton, Albert W. Welz, Jr. 1983-08-23
4218655 Method and apparatus for transmitting intelligence over a carrier wave Reed H. Johnston, Lawrence J. Stratton 1980-08-19